I just downloaded CC 5.45 and immediately found several bugs:
1)CCleaner crashes when you run it from the recycle bin's righ-click menu. This is not a new bug, it's been going on since at least a couple of releases back.
2) CCleaner IGNORES your settings and re-enables monitoring, even if you have explicitly disabled it before. Disabling it again doesn't work, it keeps running. The only way to get rid of it is to kill the process.
3)If you uncheck the option to show CCleaner in the system tray, then when you minimize it, it completely disappears, no taskbar, no system tray, nothing.. The process keeps running as a phantom process, though.
PLEASE FIX THESE!!!!